CALayer()CoreAnimation 核心动画 简称 CA
2015-10-16 05:20 真实16 阅读(185) 评论(0) 编辑 收藏 举报/*
CoreAnimation 核心动画 简称 CA
一、动画块
frame bounds center alpha
Transition 过渡
transform 动画效果
二、之前使用过得UIView动画，其本质上也是CoreAnimation实现的，知识对他里面的动画进行了封装
视图（UIView）支持动画的属性frame、bounds、center、alpha、transform、以及动画延迟、动画曲线（淡入淡出、动画过渡）、重复次数
+(void)setAnimationDelegate:(id)delegate;
+(void)setAnimationWillStartSelector:(SEL)selector; 当动画结束的时候，执行delegate对象的selector，并且把beginAnimations:context:中传入的参数传进selector
+ (void)setAnimationDidStopSelector:(SEL)selector; 当动画结束时，执行delegate对象的selector，并且把beginAnimations:context:中传入的参数传进selector
+ (void)setAnimationDuration:(NSTimeInterval)duration; 动画的持续时间，秒为单位
+ (void)setAnimationDelay:(NSTimeInterval)delay; 动画延迟delay秒后再开始
+ (void)setAnimationStartDate:(NSDate *)startDate; 动画的开始时间，默认为now
+ (void)setAnimationCurve:(UIViewAnimationCurve)curve; 动画的节奏控制(过渡)
+ (void)setAnimationRepeatCount:(float)repeatCount; 动画的重复次数
+ (void)setAnimationRepeatAutoreverses:(BOOL)repeatAutoreverses; 如果设置为YES,代表动画每次重复执行的效果会跟上一次相反
+ (void)setAnimationTransition:(UIViewAnimationTransition)transition forView:(UIView *)view cache:(BOOL)cache; 设置视图view的过渡效果, transition指定过渡类型, cache设置YES代表使用视图缓存，性能较好
*/
#import "ViewController.h"
@interface ViewController ()
{
UIImageView *imageView;
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
imageView = [[UIImageView alloc]initWithFrame:self.view.frame];
imageView.image = [UIImage imageNamed:@"7.jpg"];
// imageView.contentMode = UIViewContentModeScaleAspectFit;
[self.view addSubview:imageView];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0, 0, 100, 40);
button.center = self.view.center;
button.backgroundColor = [UIColor brownColor];
[button addTarget:self action:@selector(viewAnimation2) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
}
#pragma mark -- 1、frame bounds center alpha ---
- (void)viewAnimation1 {
#pragma mark - 方法1
// 在一段时间内 执行完命令
// [UIView animateWithDuration:3 animations:^{
// imageView.alpha = 0.5;
// }];
#pragma mark - 方法2
// 开始动画
[UIView beginAnimations:@"animation" context:nil];
// 这只动画的持续时间
[UIView setAnimationDuration:3];
// ..... 动画效果
imageView.alpha = 0.5;
imageView.bounds = CGRectMake(0, 0, 100, 100);
imageView.center = CGPointMake(50, 200);
// imageView.frame = CGRectMake(100, 100, 100, 100);
// 提交动画 会去执行动画
[UIView commitAnimations];
}
#pragma mark - 2、Transition
/*
typedef NS_ENUM(NSInteger, UIViewAnimationTransition) {
UIViewAnimationTransitionNone,
UIViewAnimationTransitionFlipFromLeft, 从左面翻转
UIViewAnimationTransitionFlipFromRight,从右面翻转
UIViewAnimationTransitionCurlUp, 向上翻页
UIViewAnimationTransitionCurlDown,向下翻页
};
*/
- (void)viewAnimation2 {
// 开始动画
[UIView beginAnimations:nil context:nil];
// 设置动画持续时间
// [UIView setAnimationDuration:3];
// 设置 UIView 的过渡动画
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:imageView cache:YES];
#pragma mark - 3、UIViewAnimationCurve
/*
typedef NS_ENUM(NSInteger, UIViewAnimationCurve) {
UIViewAnimationCurveEaseInOut, // slow at beginning and end 慢进慢出
UIViewAnimationCurveEaseIn, // slow at beginning 快进
UIViewAnimationCurveEaseOut, // slow at end 快出
UIViewAnimationCurveLinear 匀速
};
*/
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
// 设置 代理（检测动画结束）
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(finishAnimation)];
// 提交动画
[UIView commitAnimations];
}
// 动画结束之后触发的方法
- (void)finishAnimation {
[UIView beginAnimations:@"o" context:nil];
[UIView setAnimationDuration:3];
imageView.alpha = 0.1;
imageView.bounds = CGRectZero;
imageView.center = CGPointMake(100, 100);
[UIView commitAnimations];
}
#pragma mark - 4、transform
/*
imageView.transform=CGAffineTransformScale(imageView.transform, 0.5, 0.5); // 实现的是放大和缩小imageView.transform=CGAffineTransformRotate(imageView.transform, M_PI_4); //实现的是旋转 imageView.transform=CGAffineTransformTranslate(imageView.transform, 20, 0); //实现的是平移
*/
- (void)viewAnimation3 {
[UIView beginAnimations:@"animation" context:nil];
[UIView setAnimationDuration:3];
// transform 如果没有还原transform 他会保持 改变后的模样
imageView.transform = CGAffineTransformScale(imageView.transform, 0.5, 0.5);
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(restore)];
[UIView commitAnimations];
}
- (void)restore {
[UIView animateWithDuration:3 animations:^{
imageView.transform = CGAffineTransformIdentity;
}];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
